—I don't have any change with me.  Will you pay the fare for me?

— ________ .

A． That's fine

B． Nothing serious

C． Never mind

D． No problem

如图所给出的元件，按要求画出电路图并且连接实物．要求L₁和L₂串联，电压表测L₁两端电压，电流表测电路中的电流．